40137921

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{1999}}^1$

素因数の和:2125

約数の個数: 24

約数和(自身を含む): 61152000

約数和(自身を除く): 21014079

約数列:

[1, 3, 9, 23, 69, 97, 207, 291, 873, 1999, 2231, 5997, 6693, 17991, 20079, 45977, 137931, 193903, 413793, 581709, 1745127, 4459769, 13379307, 40137921]

約数ペア:

[(1, 40137921), (3, 13379307), (9, 4459769), (23, 1745127), (69, 581709), (97, 413793), (207, 193903), (291, 137931), (873, 45977), (1999, 20079), (2231, 17991), (5997, 6693)]